118307903 has 8 divisors (see below), whose sum is σ = 137968800. Its totient is φ = 101406480.

The previous prime is 118307897. The next prime is 118307941. The reversal of 118307903 is 309703811.

It is not a de Polignac number, because 118307903 - 2¹² = 118303807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118307903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118307983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172118 + ... + 172803.

It is an arithmetic number, because the mean of its divisors is an integer number (17246100).

Almost surely, 2^118307903 is an apocalyptic number.

118307903 is a deficient number, since it is larger than the sum of its proper divisors (19660897).

118307903 is an frugal number, since it uses more digits than its factorization.

118307903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344942 (or 344928 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 118307903 is about 10876.9436424025. The cubic root of 118307903 is about 490.9130594652.

The spelling of 118307903 in words is "one hundred eighteen million, three hundred seven thousand, nine hundred three".